.chat-bubble{
    position:fixed;
    right:15px;
    top:28%;
    background-color: #000;
    color: #fff;
    border-radius:8px;
    padding: 20px 4px;
    text-decoration:none;
}

.chat-bubble:visited,
.chat-bubble:active{
    color:#fff;
}
.chat-bubble:hover{
    color:#fff;
    text-decoration: underline;
}

.chat-bubble:after{
    position:absolute;
    left: 16px;
    content:"";
    height:0;
    width: 0;
    border-right: 24px solid transparent;
    border-left: 0 solid transparent;
    border-top: 30px solid #000;
    bottom:-30px;
}